After telling Major Fleming about Ailis' ledger and her dealings with Devon Hill, Fleming will tell the player to show the ledger to Governor Dodge. All the player needs to do is take the ledger to Dodge. Once there, Dodge will ask the player if he would assist in the arrest. If the player agrees, goes with Major Fleming, and Fleming survives the battle (which he really should), then the player will get the XP once he returns to Dodge to say "mission complete."